Halomonas alkalitolerans sp. nov., a Novel Moderately Halophilic Bacterium Isolated from Soda Meadow Saline Soil in Daqing, China

Shuang Wang; Qian Yang; Zhi-Hua Liu; Lei Sun; Dan Wei; Jun-Zheng Zhang; Jin-Zhu Song; Yun Wang; Jia Song; Jin-Xia Fan; Xian-Xin Meng; Wei Zhang

doi:10.1007/s12275-011-0197-z

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Halomonas alkalitolerans sp. nov., a Novel Moderately Halophilic Bacterium Isolated from Soda Meadow Saline Soil in Daqing, China: Shuang Wang ¹, Qian Yang ¹, Zhi-Hua Liu ¹, Lei Sun ², Dan Wei ², Jun-Zheng Zhang ¹, Jin-Zhu Song ¹, Yun Wang ¹, Jia Song ¹, Jin-Xia Fan ¹, Xian-Xin Meng ², Wei Zhang ²; Journal of Microbiology 2011;49(1):24-28.
DOI: https://doi.org/10.1007/s12275-011-0197-z
Published online: March 3, 2011

¹Department of Life Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China, ²Soil Fertilizer and Environment Energy Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086, P. R. China

Corresponding author: Qian Yang , Tel: +86-451-8641-2952,

Received: 26 May 2010 • Accepted: 28 September 2010

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Abstract

A moderately halophilic bacterial strain 15-13T, which was isolated from soda meadow saline soil in Daqing City, Heilongjiang Province, China, was subjected to a polyphasic taxonomic study. The cells of strain 15-13T were found to be Gram-negative, rod-shaped, and motile. The required growth conditions for strain 15-13T were: 1-23% NaCl (optimum, 7%), 10-50°C (optimum, 35°C), and pH 7.0-11.0 (optimum, pH 9.5). The predominant cellular fatty acids were C18:1 ω7c (60.48%) and C16:0 (13.96%). The DNA G+C content was 67.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparisons indicated that strain 15-13T clustered within a branch comprising species of the genus Halomonas. The closest phylogenetic neighbor of strain 15-13T was Halomonas pantelleriensis DSM 9661T (98.9% 16S rRNA gene sequence similarity). The level of DNA-DNA relatedness between the novel isolated strain and H. pantelleriensis DSM 9661T was 33.8%. On the basis of the phenotypic and phylogenetic data, strain 15-13T represents a novel species of the genus Halomonas, for which the name Halomonas alkalitolerans sp. nov. is proposed. The type strain for this novel species is 15-13T (=CGMCC 1.9129T =NBRC 106539T).

Keywords: Halomonas alkalitolerans sp. nov.;16S rRNA gene sequence;fatty acid composition;DNA-DNA hybridization

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Halomonas alkalitolerans sp. nov., a Novel Moderately Halophilic Bacterium Isolated from Soda Meadow Saline Soil in Daqing, China

J. Microbiol. 2011;49(1):24-28. Published online March 3, 2011

DOI: https://doi.org/10.1007/s12275-011-0197-z

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